110 lines
4.0 KiB
JavaScript
110 lines
4.0 KiB
JavaScript
const express = require('express');
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const db = require('../db');
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const router = express.Router();
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router.get('/tree', async (req, res) => {
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try {
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const result = await db.query('SELECT * FROM product_categories ORDER BY id');
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const buildTree = (categories, parentId = null) => {
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return categories
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.filter(cat => cat.parent_id === parentId)
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.map(cat => ({ ...cat, children: buildTree(categories, cat.id) }));
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};
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res.json({ success: true, data: buildTree(result.rows) });
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} catch (error) {
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console.error('获取分类树失败:', error);
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res.status(500).json({ success: false, message: '获取分类树失败', error: error.message });
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}
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});
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router.get('/', async (req, res) => {
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try {
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const { level } = req.query;
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let query = 'SELECT * FROM product_categories';
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const params = [];
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if (level === '1') {
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query += ' WHERE parent_id IS NULL';
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} else if (level === '2') {
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query += ' WHERE parent_id IS NOT NULL';
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}
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query += ' ORDER BY id';
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const result = await db.query(query, params);
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res.json({ success: true, data: result.rows });
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} catch (error) {
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console.error('获取分类失败:', error);
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res.status(500).json({ success: false, message: '获取分类失败', error: error.message });
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}
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});
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router.get('/:id', async (req, res) => {
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try {
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const { id } = req.params;
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const result = await db.query('SELECT * FROM product_categories WHERE id = $1', [id]);
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if (result.rows.length === 0) {
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return res.status(404).json({ success: false, message: '分类不存在' });
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}
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res.json({ success: true, data: result.rows[0] });
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} catch (error) {
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console.error('获取分类失败:', error);
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res.status(500).json({ success: false, message: '获取分类失败', error: error.message });
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}
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});
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router.post('/', async (req, res) => {
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try {
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const { name, parent_id } = req.body;
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if (!name) {
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return res.status(400).json({ success: false, message: '分类名称不能为空' });
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}
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const result = await db.query(
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'INSERT INTO product_categories (name, parent_id) VALUES ($1, $2) RETURNING *',
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[name, parent_id || null]
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);
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res.json({ success: true, data: result.rows[0], message: '创建成功' });
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} catch (error) {
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console.error('创建分类失败:', error);
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res.status(500).json({ success: false, message: '创建分类失败', error: error.message });
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}
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});
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router.put('/:id', async (req, res) => {
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try {
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const { id } = req.params;
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const { name, parent_id } = req.body;
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const updates = [];
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const params = [];
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let i = 1;
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if (name !== undefined) { updates.push(`name = $${i++}`); params.push(name); }
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if (parent_id !== undefined) { updates.push(`parent_id = $${i++}`); params.push(parent_id || null); }
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if (updates.length === 0) {
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return res.status(400).json({ success: false, message: '没有提供更新数据' });
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}
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updates.push(`updated_at = CURRENT_TIMESTAMP`);
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params.push(id);
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const result = await db.query(`UPDATE product_categories SET ${updates.join(', ')} WHERE id = $${i} RETURNING *`, params);
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if (result.rows.length === 0) {
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return res.status(404).json({ success: false, message: '分类不存在' });
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}
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res.json({ success: true, data: result.rows[0], message: '更新成功' });
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} catch (error) {
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console.error('更新分类失败:', error);
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res.status(500).json({ success: false, message: '更新分类失败', error: error.message });
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}
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});
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router.delete('/:id', async (req, res) => {
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try {
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const { id } = req.params;
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const result = await db.query('DELETE FROM product_categories WHERE id = $1 RETURNING id', [id]);
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if (result.rows.length === 0) {
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return res.status(404).json({ success: false, message: '分类不存在' });
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}
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res.json({ success: true, message: '删除成功' });
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} catch (error) {
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console.error('删除分类失败:', error);
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res.status(500).json({ success: false, message: '删除分类失败', error: error.message });
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}
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});
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module.exports = router;
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